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July 14, 2011 12:00 PM, EDT

Almost 25,000 Engine Retrofits Sold in 2010

The Manufacturers of Emission Controls Association said its members sold 24,640 diesel engine retrofit devices in 2010.

MECA said all of the devices it sold were certified by the U.S. Environmental Protection Agency and/or the California Air Resources Board for both on-road and off-road uses.

Of the total, 41%, or 10,173, were diesel particulate filters, 9,926 were diesel oxidation catalysts and 1,961 were flow-through filters.

The devices also included 2,580 closed-crankcase filters.